Whilst this is not per se Green in itself, what it does show however is that normal every day South Africans can assist both themselves and the country economically through making accommodation available ... there may be some losers in this as hotels and BnBs perhaps lose some of the revenue - but the extra affordability may have enticed tourists who might not otherwise have come. This is grassroots, like Uber, and that which is economically grassroots can help promote triple bottom line Sustainability ...